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[flang] Move LLVM_ENABLE_RUNTIMES definition above uses #138136

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Merged
merged 1 commit into from
May 1, 2025
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[flang] Move LLVM_ENABLE_RUNTIMES definition above uses #138136

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34 changes: 17 additions & 17 deletions llvm/CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -138,6 +138,23 @@ foreach(proj ${LLVM_ENABLE_PROJECTS})
endif()
endforeach()

# Select the runtimes to build
#
# As we migrate runtimes to using the bootstrapping build, the set of default runtimes
# should grow as we remove those runtimes from LLVM_ENABLE_PROJECTS above.
set(LLVM_DEFAULT_RUNTIMES "libcxx;libcxxabi;libunwind")
set(LLVM_SUPPORTED_RUNTIMES "libc;libunwind;libcxxabi;pstl;libcxx;compiler-rt;openmp;llvm-libgcc;offload;flang-rt")
set(LLVM_ENABLE_RUNTIMES "" CACHE STRING
"Semicolon-separated list of runtimes to build, or \"all\" (${LLVM_DEFAULT_RUNTIMES}). Supported runtimes are ${LLVM_SUPPORTED_RUNTIMES}.")
if(LLVM_ENABLE_RUNTIMES STREQUAL "all")
set(LLVM_ENABLE_RUNTIMES ${LLVM_DEFAULT_RUNTIMES})
endif()
foreach(proj IN LISTS LLVM_ENABLE_RUNTIMES)
if (NOT "${proj}" IN_LIST LLVM_SUPPORTED_RUNTIMES)
message(FATAL_ERROR "Runtime \"${proj}\" is not a supported runtime. Supported runtimes are: ${LLVM_SUPPORTED_RUNTIMES}")
endif()
endforeach()

if ("flang" IN_LIST LLVM_ENABLE_PROJECTS)
if (NOT "mlir" IN_LIST LLVM_ENABLE_PROJECTS)
message(STATUS "Enabling MLIR as a dependency to flang")
Expand Down Expand Up @@ -190,23 +207,6 @@ if ("flang-rt" IN_LIST LLVM_ENABLE_RUNTIMES)
endif ()
endif ()

# Select the runtimes to build
#
# As we migrate runtimes to using the bootstrapping build, the set of default runtimes
# should grow as we remove those runtimes from LLVM_ENABLE_PROJECTS above.
set(LLVM_DEFAULT_RUNTIMES "libcxx;libcxxabi;libunwind")
set(LLVM_SUPPORTED_RUNTIMES "libc;libunwind;libcxxabi;pstl;libcxx;compiler-rt;openmp;llvm-libgcc;offload;flang-rt")
set(LLVM_ENABLE_RUNTIMES "" CACHE STRING
"Semicolon-separated list of runtimes to build, or \"all\" (${LLVM_DEFAULT_RUNTIMES}). Supported runtimes are ${LLVM_SUPPORTED_RUNTIMES}.")
if(LLVM_ENABLE_RUNTIMES STREQUAL "all")
set(LLVM_ENABLE_RUNTIMES ${LLVM_DEFAULT_RUNTIMES})
endif()
foreach(proj IN LISTS LLVM_ENABLE_RUNTIMES)
if (NOT "${proj}" IN_LIST LLVM_SUPPORTED_RUNTIMES)
message(FATAL_ERROR "Runtime \"${proj}\" is not a supported runtime. Supported runtimes are: ${LLVM_SUPPORTED_RUNTIMES}")
endif()
endforeach()

# Set a shorthand option to enable the GPU build of the 'libc' project.
option(LIBC_GPU_BUILD "Enable the 'libc' project targeting the GPU" OFF)
if(LIBC_GPU_BUILD)
Expand Down